BABAN 5pcs HSS Saw Blades Rotary Tool Circular Saw Blade Mandrel fit Dremel W/ Shank HIGH-LEVEL MATERIAL: Made of high quality special steel, its unique advanced science cutting principle,so the defects of other blades can be effectively resolved WIDELY USED: HSS Segmented Saw blade for continuous cutting in wood, drywall, plastic, copper, aluminum, other SIZE:22(25.32.35.44)*0.8*6.35mm; EXTENSION ROD:3.17mm CUTTING SHEET MAINTENANCE:The cutting piece at least six months to a year before grinding, the operation is also very simple, the whole process of grinding can be completed in 2 minutes Note: Do not cut too hard material, it is best for cutting wood and PVC.They vibrate and must be handled carefully to prevent them from jumping when cutting.